Class: GLViewer::Frame

Inherits:
Object
  • Object
show all
Defined in:
lib/rglviewer/frame.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ Frame

Returns a new instance of Frame.



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# File 'lib/rglviewer/frame.rb', line 7

def initialize args = {}
	translation = args[:translation] || Vector.new(3,true)
	rotation    = args[:rotation]    || Matrix.new(3,3)
	@direct = Matrix.new(4,4,false).identity
	@indirect = @direct.clone
	#@direct.view(0,3,3,1) = translation
	#@direct.view(0,0,3,3) = rotation
	#t_rotation = rotation.transpose
	#@indirect.view(0,0,3,3) = t_rotation
	#@indirect.view(0,3,3,1) = - t_rotation * translation
end

Class Method Details

.rotate_x(a) ⇒ Object 



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# File 'lib/rglviewer/frame.rb', line 28

def self.rotate_x a
	Matrix.from_array [1.0 , 0.0        ,   0.0        ,
	                   0.0 , Math.cos(a), - Math.sin(a),
	                   0.0 , Math.sin(a),   Math.cos(a)]
end

.rotate_y(a) ⇒ Object 



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# File 'lib/rglviewer/frame.rb', line 34

def self.rotate_y a
	Matrix.from_array [ Math.cos(a) , 0.0 , Math.sin(a),
	                    0.0         , 1.0 , 0.0        ,
	                   -Math.sin(a) , 0.0 , Math.cos(a)]
end

.rotate_z(a) ⇒ Object 



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# File 'lib/rglviewer/frame.rb', line 40

def self.rotate_z a
	Matrix.from_array [Math.cos(a) , - Math.sin(a) , 0.0 ,
	                   Math.sin(a) ,   Math.cos(a) , 0.0 ,
	                   0.0         ,   0.0         , 1.0 ]
end

Instance Method Details

#direct_transform(vec) ⇒ Object 



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# File 'lib/rglviewer/frame.rb', line 20

def direct_transform vec 
	@direct * vec
end

#reverse_transform(vec) ⇒ Object 



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# File 'lib/rglviewer/frame.rb', line 24

def reverse_transform vec
	@indirect * vec
end